The xView Geometry Checker feature introduced in 3ds Max 2010 provides means to interactively check geometry objects in the viewport for various error conditions.
MAXScript can be used to
Control the settings of the xView system.
Call the xView Checkers to acquire their results from inside MAXScript code without using the xView System User Interface
Create completely new custom xView Checkers to test various aspects of selected geometry objects.
The following Interfaces expose the components of the xView Checker feature to MAXScript:
This interface provides properties and methods to control the xView Geometry Checker system and to register additional Checkers using MAXScript functions.
Checks for flipped faces, shows the backfacing faces in a different color.
Checks for flipped texture faces
Checks for isolated vertices not used by any faces.
Interface: MissingUVCoordinates
Checks for missing texture coordinates.
Checks for multiple edges.
Checks for open edges referencing only one polygon.
Checks for overlapping texture faces.
Checks for overlapping faces which typically cause Z-fighting in viewport and rendering.
Interface: OverlappingVertices
Checks for overlapping (not welded) vertices within a given tolerance.
Checks for T-Vertices (vertices sharing three edges)
How To ... Develop A Face Area XViewChecker - Part 1
How To ... Develop A Face Area XViewChecker - Part 2
How To ... Develop A Face Area XViewChecker - Part 3
How To ... Develop A Face Area XViewChecker - Part 4
These tutorials show the creation of custom XView Checkers using MAXScript functions.